Other
College of Arts and Sciences: The Evolution of Folsom Fluting [Pdf]
This is a complex and detailed paper about the fluting of the Folsom projectile point and the advantages of having these points fluted. Read about the sites where many of the Folsom points were found.
University of California
Basic Stone Tools: Paleo Indian Spear Points
See a comparison of several different spear points made by the earliest Americans over a period of 4,000 years. The spear points had many similarities. The differences seem to be related to the game being hunted.
University of Iowa
Iowa Office of the State Archaeologist: Early Paleoindian Period
Clovis and Folsom projectile points tell archaeologists a lot about the distribution of Paleoindians across North America. Read about these points, how they were made, and where these points were found in Iowa.
University of Missouri
Museum of Anthropology: Paleoindian Archaeology: Clovis Stone Tools
Find a good description of how Clovis projectile points were made. Included is a good comparison between Clovis, Folsom, and Dalton points. See photographs of several Clovis points found in western North America.